It's rumored that Halo 3 is the beginning to the Marathon series and there will be a remake for those or something along those lines...

It just wouldn't make sense. How could they link the end of Halo 3 with the beginning of a marathon game? Why would they plant that little bit extra after the credits in legendary if they weren't going to use it for anything, if they were just going to skip over it and go to marathon?

No acctually from what a friend tells me that this is in fact true. He came to school one day all excited telling me that a leaked story from bungie about starting more games based around Marathon with a new name. I havent heard anything myself but he may be right.

I'm fine with them making more Marathon games, i'd love to play those games remade. All i'm saying is that the Halo and Marathon stories are nothing alike. The only connections they have is that they have AI. The AI in Marathon go rampant, Cortana did not, although if you've read all the terminals it seems to talk about a rampant AI. Perhaps Cortana will in the future, but that wouldn't be a remake of Marathon. The one thing I will give you is that you're a superhuman cyborg in Marathon. They could possibly do what they did with Marathon Infinity. Which made pretty much no sense.

they could do a prequel or something to explain the forerunners. I really want to know what the heck happened. it would tie in fairly well with what the spark says in halo 1 and 2. it's all in the way they make it too. if they just repeat everything then it's going to be a dud right off the bat, but they could make it into its own story and use the information that we got from all the current halo games. I think they'd have a fair chance at it if they thought hard enough.